| Book Name: | [PDF] Thermodynamics – Mechanical Engineering Multiple choice Questions Answers |
| Category: | Mechanical MCQs |
| Free Download: | Available |
thermodynamics objective questions
Thermodynamics
Mechanical Engineering Multiple choice Questions Answers
Thermodynamics MCQ PDF
“Thermodynamics”
Mechanical Engineering MCQS
from FreePDfbook.com
Thermodynamics Questions Answers
- Which of the following variables controls the physical properties of a perfect gas
(a) pressure
(b) temperature
(c) volume
(d) all of the above
(e) atomic mass.
Ans: d - Which of the following laws is applicable for the behavior of a perfect gas
(a) Boyle’s law
(b) Charles’law
(c) Gay-Lussac law
(d) all of the above
(e) Joule’s law.
Ans: d - The unit of temperature in S.I. units is
(a) Centigrade
(b) Celsius
(c) Fahrenheit
(d) Kelvin
(e) Rankine.
Ans: d - The unit of mass in S.I. units is
(a) kilogram
(b) gram
(c) tonne
(d) quintal
(e) newton.
Ans: a - The unit of time in S.I. units is
(a) second
(b) minute
(c) hour
(d) day
(e) year.
Ans: a
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158. The following cycle is used for air craft refrigeration
(a) Brayton cycle
(b) Joule cycle
(c) Carnot cycle
(d) Bell-Coleman cycle
(e) Reversed-Brayton cycle.
Ans: e
159. Gas turbine cycle consists of
(a) two isothermals and two isentropics
(b) two isentropics and two constant volumes
(c) two isentropics, one constant volume and one constant pressure
(d) two isentropics and two constant pressures
(e) none of the above.
Ans: d
160. The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that
(a) carnot cycle can’t work with saturated steam
(b) heat is supplied to water at temperature below the maximum temperature of the cycle
(c) a rankine cycle receives heat at two places
(d) rankine cycle is hypothetical
(e) none of the above.
Ans: b
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